[Elecraft] RX antenna & carrier-operated relay

[Jessie Oberreuter]

      The 2nd Rx port is on a relay, and not a particularly fast or quiet 
one in my K3.  I'd hate to operate QSK that way!  I could see a menu 
option that would activate it with a longer hang time, but you'd probably 
be better off with an external switch and/or front-end protector. -kb7psg


On Sat, 4 Mar 2017, Fabio IZ4AFW / NZ1W wrote:

> Hi guys,
>   I was thinking of a possible firmware improvement related to the
> carrier operated relay.
> I use my radio on a small lot and recently I added a short beverage
> antenna for low-bands receiving. My main activity is single-op contesting.
> Because of the interaction between the tx antennas and the beverage, on
> some bands I have the COR (carrier operated relay) activating when I use
> high power.
> I know the good solutions, but my point is different.
> As I have the COR activating only when the RX Ant input is selected, why
> doesn't the K3 firmware disable it when pushing the ptt?
>
> In fact, when I push the ptt I don't need the RX-ant part to be active,
> as I'm transmitting, and -at least in my setup- I have no other
> rigs/devices that need that input (I mean, no in-band receivers and so on).
> Instead of using external relays (ptt-activated) that cut out the rx
> input when I am transmitting, why the K3 firmware just doesn't disable
> the RX ant input on its own (and re-enables it if needed when releasing
> the ptt)?
> Maybe I'm missing something here, or that could be a nice improvement
> for a next firmware release.
>
> Thanks for any comment,
> Ciao 73
> Fabio
> IZ4AFW / IO4W / NZ1W
>
>
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